Metal blank for side bearings



Nov. 5, 1929.

A. G. WELCH METAL BLANK FOR SIDE BEARINGS Filed Aug. 16. 1926 2Sheets-Sheet l 47ae72/t04 ogwe i- G. zl/ lch.

Z/MKM Nov. 5, 1929. a WELCH 1,734,356

METAL BLANK FOR SIDE BEARINGS Filed Aug. 16. 1926 2 Sheets-Swat 2Patented Now 5, 1929' "UNITED STATES "PATENT; orrics ALBERT 6 WEDGE, OFCHICAGO, ILLINOIS ASSIGNOB; '10 SOPHIE L. WOODS, v CHICAGO, ILLINOISMETAL BLANK FOR SIDE BEARINGS Application filed August 10, 1920. SerialNo. 129.370,-

This invention relates to improvements in metal blanks for side bearingsfor. railway cars and consists of the matters hereinafter described andmore particularly pointed out a in the appended claims.

The object of the invention is to provide a blank, which is stamped orcut from a sheet of metal in such way that it may be bent to assume theform of a finished casing, without the use of rivets, bolts or likefastening devices. The several advantages of my invention will appearmore clearly as I proceed with my s ecification.

In the rawings Figure 1 is a top plan view of the novel blank from whichthe improved side bearing casing is made.

Figure 2 is a perspective view illustrating the blank in the first stageof the bending process by which it is brought to orm.

' Figure 3 is a perspective view of he casing as it appears whenfinished and ready to receive the anti-friction roller and wear plate.Figure 4 is a top plan view on an enlarged scale of the side bearingwith the anti-friction roller and wear plate in position therein.

Figure 5 is a longitudinal section through Figure .4 in a planeindicated by the line 5-5 thereof.

Figure 6 is a view representing a transverse section through'the sidebearing in a plane indicated by the line 6-6 in Figure 5.

Referring now to that embodiment of my invention illustrated in thedrawings which is in the form of a truck bolster bearing: 10

indicates the novel blank from which the imroved side bearing casing ismade, Said blank is cut from a flatsheet of metal and comprises sidewings 11, 11 and'an'intermedh atebase member 12. The base member 12extends at'each end beyond the wings 11 to pro-' vide aperturedextensions 13, 13 to receive the bolts or rivets by means of which theside:

bearing when finished is attached to thetruck l5 bolster to wh'icrl itisapplied, The wings'll,

11 each have extensions, respectively, 14, 14,

and one pair of said extensions on the one win have lateral tongueextensions 15, 15.

it-h a blank thus formed, the casing is bent to shape as follows: Thetwo wings 11,

11 are bent up at right angles to the base member I2 approximately onlines 12", 12 which define the base and separate it from the wings. Thisproduces the result shown in Figure 2. The extensions 14, 14 are thenbent at right angles to their respective wings along lines 11, 11 whichdefine short flangeparts 16, 16 of the wings which project be: yond thelines 12 defining the longitudinal limits of the base member 12 of theblank and whichare severed from said base member, as clearly illustratedin Fig. 1. When the blank is thus bent to form, the bottom ends twowings together to form the end Walls of the casing, said end walls beingeach made up of the flange extensions 16, 16 and the exte'nsions 14, 14of the said wings.

When the blank is thus bent into shape and the tongue extension 15, 15clinched rigidly 8 to embrace the associated extensions 14, 14,

a strong rigid casing, capable of withstanding the shocks and jars of ananti-friction roller when moving therein, is produced. It will be notedthat a space 17 separates the adjacent edges of theflanges 16, therebyprovidi'ng the usual opening for the escape of cinders, dust and dirtfrom the bearing.

In the casing resting on the bottom 12 thereof is located a combinationwear plate and filler block 18,-whichmay be forged, cast or produced inany'other familiar manner. Said block as shown is provided on its upperface with a de ressed wear surface 19 inclined downwardly rom each endtoward the transverse median line, of the casing in order to center aroller 20 which is mounted on said wear plate iii a familiar manner. Theroller in this case has no trunnions and is retained in the casing bygravity.

It will be manifest that from the improved blank an open top casing withbottom side and end walls is produced without the necessity of the useof any bolts or rivets to retain the parts of the casing in set upfinished form.

I claim as my invention:

1. A sheet metal blank for a side bearing easing, said blank consistingof a base part and of wing parts at the sides of said base part and saidwing parts having end exten sions which are are severed "from said basepart, said wing parts being adapted to be bent up to form the side wallsof the casing and the end extensions ofsaid wing parts being adapted tobe bent at right angles to said wing parts into overlapping relation toprovide end walls for said casing.

2. A sheet metalblank for a side bearing casing, said blank consistingof a base art and of wing parts at the sides of said ase part, said wingparts having end extensions at their free margins and narrower flangeextensions between said margins and the base part, said flangeextensions being severed from said base part said wing parts beingadapted to be bent up to form the side walls of the casing and theendextensions of said wing parts. being adapted to be bent at right anglesto said wing parts into overlapping relation to provide apertured endwalls for said casing.

3. A sheet metal blank for a side bearing casing, said blank consistingof a base part and of wing parts at the sides of said base part, saidbase part having apertured end extensions and said wing parts having endextensions at their free margins and narrower flange extensions betweensaid margins and the base part, the wider extenslons of one of said wingparts having lateral tongue ex-v tensions, said wing parts beingadapted'to be bent up to form the side walls of the casing, the endextensions of said wing parts being adapted to be bent at right anglesto said wing parts into overlapping relation to provide end walls forsaid casing witlrthe extensions of said base part projecting beyond theend walls, and the lateral tongue extensions on the wider extensions ofone wing part being adapted to bebent down to embrace the likeextensions of the other wing part to look the parts of the blank intorigid casing form.

In testimony that I claim the fore oing as my invention, I aflix mysignature this 7th day of August, A. D. 1926. x I v ALBERT G. wELon.

